Cheerleading with girls not talking to me

I went to the cheerleading meeting at STM. I sat and listened to the presentation then my mom told me that I could go sit with the 8th graders at their table since I'm in 8th grade and I think they were my friends so I went over and sat with them and was quiet then they just got up and all walked away. That was not nice but I didn't say anything. So then I went and looked at the board by myself but Shannon did talk to me a little so that was good. She is really a good person. She likes me and does not just ignore me too much even if I am being quiet. Sometimes I want to be friends but I think that no one wants to talk so I don;t know what to say so I sit there by myself and try to be friends with these girls. Like I let the other girls talk and I listen but sometimes I get stressed so I sit there and maybe humming to myself. I wanted to think that they treated me nicely actually they didn't treat me nice if they got up and walked away and don't talk to me or ask me to sit with them or practice cheers with them or really nothing. I really love cheerleading and I know I can be a great cheerleader so I'll keep being a cheerleader and know all the cheers. So I won't give up I will keep trying and trying even if the girls don't wanna talk to me and I might feel sad but I'll cheerlead anyway. The end.